Preliminary application tests and properties study of the crude oil pour point depressant
Jianzhong Huo
Abstract
Jianzhong Huo
Abstract
Higher alcohol acrylic esters were synthesized and polymerized with maleic anhydride and styrene to prepare the oil retarding agent A,next the product A was aminolyzed into the oil retarding agent B by high alkyl amines.When agents A and B were added to crude oil at Dagang oil field that a concentrations of 2×10 -4 respectively,the crude oil freezing point was lowered by 7℃ and 20℃ respectively.They had similar effect at Renqiu and Daqing in the meantime,the reaction conditions of the polymerization and the aminolyzation were studied,it was observed that when their molar ratio was 9∶1∶1 and the aminolyzation was proceeded at 80℃ for 7 hours,the retarding result was the best.
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Higher alcohol acrylic esters were synthesized and polymerized with maleic anhydride and styrene to prepare the oil retarding agent A,next the product A was aminolyzed into the oil retarding agent B by high alkyl amines.When agents A and B were added to crude oil at Dagang oil field that a concentrations of 2×10 -4 respectively,the crude oil freezing point was lowered by 7℃ and 20℃ respectively.They had similar effect at Renqiu and Daqing in the meantime,the reaction conditions of the polymerization and the aminolyzation were studied,it was observed that when their molar ratio was 9∶1∶1 and the aminolyzation was proceeded at 80℃ for 7 hours,the retarding result was the best.
Key concepts: Chemistry, Pour point, Depressant, Polymerization, Maleic anhydride, Organic chemistry, Alcohol, Molar ratio